Noa Is My Senior, and My Friend.

The story centers on Rihito Ōtsuka — a laid-back and unbothered guy, and an employee in a game company, whose motto in life is to conserve energy — and Noa Saotome, his senior and an art director. Noa, a quintessential career woman, is deeply trusted by her superiors and admired by her juniors. But one day, Rihito accidentally discovers Noa's secret side that she strictly keeps hidden. This starts the "friends only" after-work relationship between Noa and Rihito.